Overview
The DALY Smart BMS for Lithium Ion (Li-Ion) Battery 150A is a high-capacity battery management system designed to protect, monitor, and balance 6S-20S Li-Ion packs (24 V to 72 V). Engineered for e-bikes, electric scooters, DIY EV projects, solar storage, powerwalls, and UPS systems, this BMS delivers reliable safety, precise cell balancing, and real-time data via CAN or UART.
Key Features
- 150A continuous current with 200A peak for 10 seconds to handle heavy loads and acceleration events.
- Advanced protection suite including overcharge, over-discharge, over-current, short-circuit, and over-temperature safeguards.
- Precision passive cell balancing (approx. 100 mA per cell) to extend pack life and prevent cell mismatch.
- Real-time monitoring through CAN bus and UART (TTL) for telemetry, logging, and integration with controllers.
- Smart management logic that adjusts charge and discharge limits based on pack voltage and temperature.
- Compact, rugged form factor with four M3 mounting holes for secure installation.
Benefits of Using a DALY Smart BMS 150A
- Improved safety: Prevents dangerous overcharging and deep discharge that can damage Li-Ion cells.
- Longer pack life: Balancing reduces uneven wear and increases usable cycle count.
- Higher system efficiency: Low idle current consumption preserves stored energy when the pack is not in use.
- Reliable high-current performance: Handles current spikes common in EVs, e-bikes, and high-power DIY builds.
- Easy integration: Clear wiring, standard communication protocols, and a compact PCB make installation straightforward.
Specifications
- Model: DALY Smart BMS 150A for Li-Ion
- Supported battery voltage: 24 V to 72 V (6S-20S Li-Ion packs)
- Continuous current rating: 150 A
- Peak current (10 s): 200 A
- Cell balancing current: Approx. 100 mA per cell
- Protection functions: Overcharge, over-discharge, over-current, short-circuit, over-temperature
- Communication: CAN bus and UART (TTL)
- Operating temperature: -20 °C to +60 °C
- PCB size: 80 mm x 50 mm x 8 mm
- Weight: 95 g
- Mounting: Four M3 screw holes
How the BMS Protects and Balances Your Pack
The DALY Smart BMS continuously monitors individual cell voltages, pack voltage, current, and temperature. When the pack is charging, the BMS applies passive balancing to equalize cells and avoid over-voltage on any single cell. During discharge, protections are ready to limit or disconnect output if unsafe conditions appear. LEDs on the board provide quick visual feedback for cell status and balancing activity.
Installation Guide
Before you start
- Verify cell orientation and pack wiring. Ensure all cell balance leads are accessible.
- Disconnect all loads and chargers during installation.
Step-by-step
- Prepare the battery pack in series, securing cells and tabs.
- Mount the BMS using four M3 screws on a flat surface inside the enclosure.
- Connect balance leads from cell 1 up to the highest cell (up to 20S) to the BMS inputs.
- Attach main pack positive and negative to the B+ and B- terminals.
- Optionally connect CAN or UART for telemetry to your controller or display.
- Power on the pack with a charger or load and observe the LEDs; green indicates balanced cells ready for use.
Applications
- Electric scooters and e-bikes
- Electric skateboards and hoverboards
- Solar battery banks and home energy storage
- DIY electric vehicles, go-karts, and trikes
- Powerwalls and UPS backup systems
Practical Example
For a custom 15S Li-Ion pack in an electric scooter, the DALY Smart BMS keeps each cell balanced during charge cycles and protects the pack during heavy acceleration. The board can withstand 180 A surge events while maintaining cell health and safety, providing confidence for long rides and demanding use.
Why Choose This High Capacity Lithium Battery BMS
- Works across a wide voltage range (6S-20S) so one model fits many builds.
- Designed for high-current applications with low self-consumption under idle.
- Proven reliability for e-bike and solar users worldwide.
- Temperature-aware management for safer operation in cold and hot environments.
Order and Support
Ready to protect and prolong your Li-Ion pack? Add the DALY Smart BMS for Lithium Ion (Li-Ion) Battery 150A to your cart now. If you need wiring diagrams, firmware info, or help integrating CAN or UART, contact our support team for step-by-step assistance.
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